Selective hydrogenation of 5-hydroxymethylfurfural triggered by a high Lewis acidic Ni-based transition metal carbide catalyst  

作　　者：Rulu Huang Jianchun Jiang Jie Liang Shanyong Wang Yuwei Chen Xianhai Zeng Kui Wang 

机构地区：[1]Institute of Chemical Industry of Forest Products,Chinese Academy of Forestry,Biomass Energy and Material Key Laboratory of Jiangsu Province,Nanjing,210042,China [2]Co-Innovation Centre of Efficient Processing and Utilization of Forest Resources,Nanjing Forestry University,Nanjing,210037,China [3]School of Automotive Engineering,Yancheng Institute of Technology,Yancheng,224051,China [4]College of Energy,State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen,361102,China

出　　处：《Green Energy & Environment》2025年第3期573-584,共12页绿色能源与环境(英文版)

基　　金：Fundamental Research Foundation of CAF (CAFYBB2022QB001);National Nature Science Foundation of China for Excellent Young Scientists Fund (32222058)。

摘　　要：The high-efficiency conversion of biomass resources to biofuels has attracted widespread attention, and the active sites and synergistic effect of catalysts significantly impact their surface arrangement and electronic structure. Here, a nickel-based transition metal carbide catalyst(Ni/TMC) with high Lewis acidity was prepared by self-assembly of transition metal carbide(TMC) and nickel, which exhibited excellent performance on synergistic hydrogenation and hydrogenolysis of 5-hydroxymethylfurfural(HMF) into liquid biofuel 2,5-dimethylfuran(DMF).Notably, Ni/WC with the highest Lewis acidity(4728.3 μmol g^(-1)) can achieve 100% conversion of HMF to 97.6% yield of DMF, with a turnover frequency of up to 46.5 h^(-1). The characterization results demonstrate that the rich Lewis acid sites yielded by the synergistic effect between Ni species and TMC are beneficial for the C=O hydrogenation and C–O cleavage, thereby accelerating the process of hydrodeoxygenation(HDO). Besides, a kinetic model for the HDO of HMF to DMF process has been established based on the experimental results, which elucidated a significant correlation between the measured and the predicted data(R^(2)> 0.97). Corresponding to the adsorption configuration of Ni/WC and substrate determined by in-situ FTIR characterization, this study provides a novel insight into the selective conversion of HMF process for functional biofuel and bio-chemicals.

关 键 词：5-HYDROXYMETHYLFURFURAL Lewis acid Synergistic effect HYDRODEOXYGENATION 2 5-Dimethylfuran 

分 类 号：TQ426[化学工程]